// strings/Resetting.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Resetting {
    public static void
    main(String[] args) throws Exception {
        Matcher m = Pattern.compile("[frb][aiu][gx]")
                .matcher("fix the rug with bags");
        while (m.find())
            System.out.print(m.group() + " ");
        System.out.println();
        m.reset("fix the rig with rags");
        while (m.find())
            System.out.print(m.group() + " ");
    }
}
/* Output:
fix rug bag
fix rig rag
*/
